Process of forming electric conducting-cables.



No. 7|5,3|3. Patented Dec. 9, I902. R-..SPAULDING.

PROCESS OF FORMING ELECTRIC (EDNDUCTING GABLES.

(Applicition fllodjhy a. 1902.)

(lo IodeL) INVENTUR M BY flim,@mrma wm His ATTORNEYS THE NORRIS PETERS ca, Pum o-uwa. WASHINGTON. o. c.

UNITED STATES PATENT OFFICE.

RUSSELL SPAULDING, OF NEW YORK, N. Y.

PROCESS OF FORMING ELECTRIC CONDUCTING-CABLES.

SPECIFICATION forming part of Letters Patent No. 715,313, dated December 9, 1902.

Application filed May 3, 1902- Serial No. 105,736. (N0 p imen T0 aZZ whom it may concern.-

Be it known that I, RUSSELL SPAULDING, a citizen of the United States, residing in the borough of Manhattan, city, county, and State of New York, have invented certain new and useful Improvements inProcesses of Forming Electric Conducting-Cables, of which the following is a specification.

My invention relates to a process for forming electric conducting-cables, and especially such cables which are flat and have a rectangular cross-sectional area.

I will describe a process embodying my invention and then point out the novel features thereof in a claim.

In the accompanying drawings, Figurel is an end "iew of a conducting-core formed according to my process. Fig. 2 is an end View of the core of Fig. 1 after it has been fiattened. Fig. 3 is an end View of a complete cable formed in accordance with my invention. Fig. 4. is an end view of a modified form of cable also formed in accordance with my invention.

My process consists, primarily, in forming a core from a plurality of fine wires. This is accomplished by braiding the cores about a former or mandrel to have substantially a core which shall be approximately circular in cross-section. Any well known braiding After the tubular core is obtained it is then flattened to give it approximately a rectangular shape in cross-section, as will be seen from Fig. 2. The core in its flattened condition is then run through a suitable apparatus to apply insulating-covering of any suitable material, preferably a rubber composition. Any of the well-known mechanisms used for this purpose may be employed.

Referring to the drawings, A designates a core, and A the insulating-covering.

In Fig. A I have shown a modified form of conducting-cable. As here shown,a plurality of cores A are included underasingle covering of insulation, which is applied simultaneously to each core. The two cores are insulated from each other by a vertical partition ct.

Having thus described myinvention, what I claim is-- The herein-described process of forming an electric conducting-cable which consists in braiding a plurality of fine wires to form a tube, next flattening the tube and finally covering the flattened, braided tube with insulation.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

RUSSELL SPAULDING.

Witnesses:

HENRY C. GARRE'rsoN, GEO. E. GRUsE. 

